Why does your belly protrude in thalassemia?

In thalassemia, the belly may protrude due to several factors, primarily related to the expansion of the bone marrow and splenomegaly (enlargement of the spleen). The body compensates for anemia by increasing red blood cell production, leading to an enlarged marrow space, particularly in the abdomen. Additionally, chronic anemia can result in iron overload from frequent blood transfusions, which may also contribute to abdominal swelling. These factors combined can create a visibly protruding belly in individuals with thalassemia.